HUMACAO, PR · Naguabo Municipio County

LAS PIEDRAS HUMACAO Water System

Current status

No open violations on record as of July 4, 2026.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace Puerto Rico’s official records. Always confirm current status with Puerto Rico before making decisions based on this information.

System facts

System ID (PWSID): PR0005376
System type: Community Water System
Population served: 36,032
Service connections: 13,495
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
June 1, 2022 – June 30, 2022
Resolved
Monitoring, Regular
—
OXAMYL
July 1, 2021 – September 30, 2021
Resolved
Monitoring, Regular
—
Carbofuran
July 1, 2021 – September 30, 2021
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2020 – August 7, 2020
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
April 9, 2019 – July 29, 2020
Resolved
Monitoring, Source Water (LT2)
—
Turbidity
February 1, 2019 – February 28, 2019
Resolved
Monitoring, Source Water (LT2)
—
E. COLI
February 1, 2019 – February 28, 2019
Resolved
Monitoring, Source Water (LT2)
—
Cryptosporidium
February 1, 2019 – February 28, 2019
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
October 1, 2018 – August 13, 2019
Resolved
Monitoring, Source Water (LT2)
—
Turbidity
April 1, 2018 – April 30, 2018
Resolved
Monitoring, Source Water (LT2)
—
E. COLI
April 1, 2018 – April 30, 2018
Resolved
Monitoring, Source Water (LT2)
—
Cryptosporidium
April 1, 2018 – April 30, 2018
Resolved
Monitoring, Source Water (LT2)
—
Turbidity
January 1, 2018 – January 31, 2018
Resolved
Monitoring, Source Water (LT2)
—
E. COLI
January 1, 2018 – January 31, 2018
Resolved
Monitoring, Source Water (LT2)
—
Cryptosporidium
January 1, 2018 – January 31, 2018
Resolved
Monitoring, Source Water (LT2)
—
Turbidity
July 1, 2017 – July 31, 2017
Resolved
Monitoring, Source Water (LT2)
—
E. COLI
July 1, 2017 – July 31, 2017
Resolved
Monitoring, Source Water (LT2)
—
Cryptosporidium
July 1, 2017 – July 31, 2017
Resolved
Monitoring, Source Water (LT2)
—
Turbidity
May 1, 2017 – May 31, 2017
Resolved
Monitoring, Source Water (LT2)
—
Cryptosporidium
May 1, 2017 – May 31, 2017
Resolved
Monitoring, Source Water (LT2)
—
E. COLI
May 1, 2017 – May 31, 2017
Resolved
Monitoring, Source Water (LT2)
—
Turbidity
February 1, 2017 – February 28, 2017
Resolved
Monitoring, Source Water (LT2)
—
E. COLI
February 1, 2017 – February 28, 2017
Resolved
Monitoring, Source Water (LT2)
—
Cryptosporidium
February 1, 2017 – February 28, 2017
Resolved
Monitoring, Source Water (LT2)
—
E. COLI
January 1, 2017 – January 31, 2017
Resolved
Monitoring, Source Water (LT2)
—
Cryptosporidium
January 1, 2017 – January 31, 2017
Resolved
Monitoring, Source Water (LT2)
—
Turbidity
January 1, 2017 – January 31, 2017
Resolved
Monitoring, Source Water (LT2)
—
Turbidity
October 1, 2016 – October 31, 2016
Resolved
Monitoring, Source Water (LT2)
—
E. COLI
October 1, 2016 – October 31, 2016
Resolved
Monitoring, Source Water (LT2)
—
Cryptosporidium
October 1, 2016 – October 31, 2016
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
April 1, 2015 – April 30, 2015
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
January 1, 2015 – December 31, 2018
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 2015 – December 31, 2017
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
November 1, 2014 – November 30, 2014
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2014 – August 20, 2014
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
June 1, 2014 – June 30, 2014
Resolved
Monitoring, Regular
—
Antimony, Total
April 1, 2014 – June 30, 2014
Resolved
Monitoring, Routine (IDSE)
—
Total Haloacetic Acids (HAA5)
April 1, 2014 – June 30, 2014
Resolved
Monitoring, Routine (IDSE)
—
TTHM
April 1, 2014 – June 30, 2014
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
January 1, 2014 – January 31, 2014
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
July 1, 2013 – December 31, 2018
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
July 1, 2012 – December 31, 2018
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
July 1, 2011 – December 31, 2018
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
January 1, 2011 – June 30, 2011
Resolved
Single Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
May 1, 2010 – May 31, 2010
Resolved
Monitoring, Source Water (LT2)
—
Cryptosporidium
March 1, 2010 – March 31, 2010
Archived
Monitoring, Source Water (LT2)
—
Cryptosporidium
December 1, 2009 – December 31, 2009
Resolved
Monitoring, Source Water (LT2)
—
Cryptosporidium
November 1, 2009 – November 30, 2009
Resolved
Monitoring, Source Water (LT2)
—
Cryptosporidium
April 1, 2009 – April 30, 2009
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
April 1, 2009 – December 31, 2018
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
October 1, 2008 – December 31, 2018
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
September 1, 2008 – September 30, 2008
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
April 1, 2008 – June 30, 2008
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
January 1, 2008 – March 31, 2008
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
December 1, 2007 – December 31, 2007
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
November 1, 2007 – November 30, 2007
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
October 1, 2007 – October 31, 2007
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
October 1, 2007 – December 31, 2007
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
September 1, 2007 – September 30, 2007
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 2007 – August 31, 2007
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
August 1, 2007 – August 31, 2007
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
July 1, 2007 – September 30, 2007
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
July 1, 2007 – July 31, 2007
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
June 1, 2007 – June 30, 2007
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
May 1, 2007 – May 31, 2007
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
April 1, 2007 – April 30, 2007
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
March 1, 2007 – March 31, 2007
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
February 1, 2007 – February 28, 2007
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
December 1, 2006 – December 31, 2006
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
November 1, 2006 – November 30, 2006
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
October 1, 2006 – October 31, 2006
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
September 1, 2006 – September 30, 2006
Archived
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
August 1, 2006 – August 31, 2006
Archived
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
July 1, 2006 – September 30, 2006
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
July 1, 2006 – July 31, 2006
Archived
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
June 1, 2006 – June 30, 2006
Archived
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
April 1, 2006 – April 30, 2006
Archived
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
April 1, 2006 – June 30, 2006
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
February 1, 2006 – February 28, 2006
Archived
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
January 1, 2006 – January 31, 2006
Archived
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
December 1, 2005 – December 31, 2005
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
November 1, 2005 – November 30, 2005
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
October 1, 2005 – December 31, 2005
Archived
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
October 1, 2005 – October 31, 2005
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
September 1, 2005 – September 30, 2005
Archived
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
July 1, 2005 – July 31, 2005
Archived
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
January 1, 2005 – January 31, 2005
Archived
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
December 1, 2004 – December 31, 2004
Archived
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
November 1, 2004 – November 30, 2004
Archived
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
October 1, 2004 – October 31, 2004
Archived
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
July 1, 2004 – July 31, 2004
Archived
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
May 1, 2004 – May 31, 2004
Archived
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
November 1, 2003 – November 30, 2003
Archived
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
July 1, 2003 – September 30, 2003
Archived
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
June 1, 2003 – June 30, 2003
Archived
Monitoring, Regular
—
Arsenic
September 30, 1983 – September 29, 1984
Archived
Monitoring, Regular
—
Cadmium
September 30, 1983 – September 29, 1984
Archived
Monitoring, Regular
—
Barium
September 30, 1983 – September 29, 1984
Archived
Monitoring, Regular
—
Mercury
September 30, 1983 – September 29, 1984
Archived
Monitoring, Regular
—
Fluoride
September 30, 1983 – September 29, 1984
Archived
Monitoring, Regular
—
Chromium
September 30, 1983 – September 29, 1984
Archived
Monitoring, Regular
—
Combined Radium (-226 and -228)
September 1, 1980 – September 30, 1980
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
September 1, 1980 – September 30, 1980
Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
June 1, 2022 – June 30, 2022	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
July 1, 2021 – September 30, 2021	Monitoring, Regular	OXAMYL	—	Resolved
July 1, 2021 – September 30, 2021	Monitoring, Regular	Carbofuran	—	Resolved
July 1, 2020 – August 7, 2020	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
April 9, 2019 – July 29, 2020	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
February 1, 2019 – February 28, 2019	Monitoring, Source Water (LT2)	Turbidity	—	Resolved
February 1, 2019 – February 28, 2019	Monitoring, Source Water (LT2)	E. COLI	—	Resolved
February 1, 2019 – February 28, 2019	Monitoring, Source Water (LT2)	Cryptosporidium	—	Resolved
October 1, 2018 – August 13, 2019	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
April 1, 2018 – April 30, 2018	Monitoring, Source Water (LT2)	Turbidity	—	Resolved
April 1, 2018 – April 30, 2018	Monitoring, Source Water (LT2)	E. COLI	—	Resolved
April 1, 2018 – April 30, 2018	Monitoring, Source Water (LT2)	Cryptosporidium	—	Resolved
January 1, 2018 – January 31, 2018	Monitoring, Source Water (LT2)	Turbidity	—	Resolved
January 1, 2018 – January 31, 2018	Monitoring, Source Water (LT2)	E. COLI	—	Resolved
January 1, 2018 – January 31, 2018	Monitoring, Source Water (LT2)	Cryptosporidium	—	Resolved
July 1, 2017 – July 31, 2017	Monitoring, Source Water (LT2)	Turbidity	—	Resolved
July 1, 2017 – July 31, 2017	Monitoring, Source Water (LT2)	E. COLI	—	Resolved
July 1, 2017 – July 31, 2017	Monitoring, Source Water (LT2)	Cryptosporidium	—	Resolved
May 1, 2017 – May 31, 2017	Monitoring, Source Water (LT2)	Turbidity	—	Resolved
May 1, 2017 – May 31, 2017	Monitoring, Source Water (LT2)	Cryptosporidium	—	Resolved
May 1, 2017 – May 31, 2017	Monitoring, Source Water (LT2)	E. COLI	—	Resolved
February 1, 2017 – February 28, 2017	Monitoring, Source Water (LT2)	Turbidity	—	Resolved
February 1, 2017 – February 28, 2017	Monitoring, Source Water (LT2)	E. COLI	—	Resolved
February 1, 2017 – February 28, 2017	Monitoring, Source Water (LT2)	Cryptosporidium	—	Resolved
January 1, 2017 – January 31, 2017	Monitoring, Source Water (LT2)	E. COLI	—	Resolved
January 1, 2017 – January 31, 2017	Monitoring, Source Water (LT2)	Cryptosporidium	—	Resolved
January 1, 2017 – January 31, 2017	Monitoring, Source Water (LT2)	Turbidity	—	Resolved
October 1, 2016 – October 31, 2016	Monitoring, Source Water (LT2)	Turbidity	—	Resolved
October 1, 2016 – October 31, 2016	Monitoring, Source Water (LT2)	E. COLI	—	Resolved
October 1, 2016 – October 31, 2016	Monitoring, Source Water (LT2)	Cryptosporidium	—	Resolved
April 1, 2015 – April 30, 2015	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
January 1, 2015 – December 31, 2018	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
January 1, 2015 – December 31, 2017	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
November 1, 2014 – November 30, 2014	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
July 1, 2014 – August 20, 2014	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
June 1, 2014 – June 30, 2014	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
April 1, 2014 – June 30, 2014	Monitoring, Regular	Antimony, Total	—	Resolved
April 1, 2014 – June 30, 2014	Monitoring, Routine (IDSE)	Total Haloacetic Acids (HAA5)	—	Resolved
April 1, 2014 – June 30, 2014	Monitoring, Routine (IDSE)	TTHM	—	Resolved
January 1, 2014 – January 31, 2014	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
July 1, 2013 – December 31, 2018	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
July 1, 2012 – December 31, 2018	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
July 1, 2011 – December 31, 2018	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
January 1, 2011 – June 30, 2011	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
May 1, 2010 – May 31, 2010	Single Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
March 1, 2010 – March 31, 2010	Monitoring, Source Water (LT2)	Cryptosporidium	—	Archived
December 1, 2009 – December 31, 2009	Monitoring, Source Water (LT2)	Cryptosporidium	—	Resolved
November 1, 2009 – November 30, 2009	Monitoring, Source Water (LT2)	Cryptosporidium	—	Resolved
April 1, 2009 – April 30, 2009	Monitoring, Source Water (LT2)	Cryptosporidium	—	Resolved
April 1, 2009 – December 31, 2018	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
October 1, 2008 – December 31, 2018	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
September 1, 2008 – September 30, 2008	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
April 1, 2008 – June 30, 2008	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
January 1, 2008 – March 31, 2008	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
December 1, 2007 – December 31, 2007	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
November 1, 2007 – November 30, 2007	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
October 1, 2007 – October 31, 2007	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
October 1, 2007 – December 31, 2007	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
September 1, 2007 – September 30, 2007	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
August 1, 2007 – August 31, 2007	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
August 1, 2007 – August 31, 2007	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
July 1, 2007 – September 30, 2007	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
July 1, 2007 – July 31, 2007	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
June 1, 2007 – June 30, 2007	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
May 1, 2007 – May 31, 2007	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
April 1, 2007 – April 30, 2007	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
March 1, 2007 – March 31, 2007	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
February 1, 2007 – February 28, 2007	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
December 1, 2006 – December 31, 2006	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
November 1, 2006 – November 30, 2006	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
October 1, 2006 – October 31, 2006	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
September 1, 2006 – September 30, 2006	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Archived
August 1, 2006 – August 31, 2006	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Archived
July 1, 2006 – September 30, 2006	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
July 1, 2006 – July 31, 2006	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Archived
June 1, 2006 – June 30, 2006	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Archived
April 1, 2006 – April 30, 2006	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Archived
April 1, 2006 – June 30, 2006	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
February 1, 2006 – February 28, 2006	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Archived
January 1, 2006 – January 31, 2006	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Archived
December 1, 2005 – December 31, 2005	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
November 1, 2005 – November 30, 2005	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
October 1, 2005 – December 31, 2005	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Archived
October 1, 2005 – October 31, 2005	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
September 1, 2005 – September 30, 2005	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Archived
July 1, 2005 – July 31, 2005	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Archived
January 1, 2005 – January 31, 2005	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
December 1, 2004 – December 31, 2004	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Archived
November 1, 2004 – November 30, 2004	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Archived
October 1, 2004 – October 31, 2004	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Archived
July 1, 2004 – July 31, 2004	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
May 1, 2004 – May 31, 2004	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Archived
November 1, 2003 – November 30, 2003	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
July 1, 2003 – September 30, 2003	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Archived
June 1, 2003 – June 30, 2003	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Archived
September 30, 1983 – September 29, 1984	Monitoring, Regular	Arsenic	—	Archived
September 30, 1983 – September 29, 1984	Monitoring, Regular	Cadmium	—	Archived
September 30, 1983 – September 29, 1984	Monitoring, Regular	Barium	—	Archived
September 30, 1983 – September 29, 1984	Monitoring, Regular	Mercury	—	Archived
September 30, 1983 – September 29, 1984	Monitoring, Regular	Fluoride	—	Archived
September 30, 1983 – September 29, 1984	Monitoring, Regular	Chromium	—	Archived
September 1, 1980 – September 30, 1980	Monitoring, Regular	Combined Radium (-226 and -228)	—	Archived
September 1, 1980 – September 30, 1980	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

August 30, 2022State Formal Notice of Violation issued1 linked violation
July 31, 2022State Compliance achieved1 linked violation
December 31, 2021State Compliance achieved2 linked violations
October 25, 2021State Formal Notice of Violation issued1 linked violation
October 25, 2021State Formal Notice of Violation issued1 linked violation
August 7, 2020State Compliance achieved1 linked violation
July 29, 2020State Compliance achieved1 linked violation
December 5, 2019State Formal Notice of Violation issued1 linked violation
August 13, 2019State Compliance achieved1 linked violation
July 10, 2019State Formal Notice of Violation issued1 linked violation
June 27, 2019State Formal Notice of Violation issued3 linked violations
March 31, 2019State Compliance achieved24 linked violations
December 31, 2018State Compliance achieved6 linked violations
November 30, 2018State Compliance achieved6 linked violations
August 13, 2018State Formal Notice of Violation issued6 linked violations
February 28, 2018State Compliance achieved3 linked violations
December 31, 2017State Compliance achieved1 linked violation
October 31, 2017State Formal Notice of Violation issued3 linked violations
September 30, 2017State Compliance achieved1 linked violation
August 31, 2017State Compliance achieved12 linked violations
July 6, 2017State Formal Notice of Violation issued3 linked violations
May 15, 2017State Formal Notice of Violation issued6 linked violations
December 13, 2016State Formal Notice of Violation issued3 linked violations
December 31, 2015State Compliance achieved1 linked violation
October 31, 2015State Compliance achieved1 linked violation
June 1, 2015State Other1 linked violation
May 31, 2015State Compliance achieved2 linked violations
March 31, 2015State Formal Notice of Violation issued1 linked violation
March 19, 2015State Formal Notice of Violation issued1 linked violation
December 12, 2014State Compliance achieved1 linked violation
September 30, 2014State Compliance achieved1 linked violation
September 30, 2014State Compliance achieved2 linked violations
September 3, 2014State Formal Notice of Violation issued1 linked violation
August 20, 2014State Compliance achieved1 linked violation
August 11, 2014State Formal Notice of Violation issued2 linked violations
August 4, 2014State Other1 linked violation
March 17, 2014State Formal Notice of Violation issued1 linked violation
February 27, 2014State Other1 linked violation
February 6, 2013State Formal Notice of Violation issued1 linked violation
December 31, 2011State Compliance achieved1 linked violation
December 11, 2011State Formal Notice of Violation issued1 linked violation
October 11, 2011State Compliance achieved1 linked violation
September 12, 2011State Formal Notice of Violation issued1 linked violation
June 13, 2011State Formal Notice of Violation issued1 linked violation
November 30, 2010State Compliance achieved1 linked violation
January 31, 2010State Compliance achieved2 linked violations
August 25, 2009State Formal Notice of Violation issued2 linked violations
June 30, 2009State Compliance achieved4 linked violations
May 31, 2009State Compliance achieved1 linked violation
March 30, 2009State Compliance achieved1 linked violation
March 30, 2009State Compliance achieved5 linked violations
March 24, 2009State Civil Case filed in State court1 linked violation
December 8, 2008State Civil Case filed in State court3 linked violations
September 4, 2008State Civil Case filed in State court3 linked violations
June 30, 2008State Compliance achieved18 linked violations
June 24, 2008State Civil Case filed in State court1 linked violation
February 28, 2008State Compliance achieved1 linked violation
February 26, 2008State Civil Case filed in State court21 linked violations
November 16, 2007State Civil Case filed in State court25 linked violations
September 30, 2007State Compliance achievedgeneral compliance action — not tied to a specific violation on record
September 30, 2007State Compliance achieved3 linked violations
May 25, 2007State Consent Decree/Judgement17 linked violations
February 5, 2007State Administrative/Compliance Order without penalty issued1 linked violation
August 15, 2006State Public Notification requested2 linked violations
November 14, 2005State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
August 12, 2005State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
August 12, 2004State Public Notification requested2 linked violations
February 9, 2004State Public Notification requested2 linked violations
August 14, 2003State Public Notification requestedgeneral compliance action — not tied to a specific violation on record

Contact

LAS PIEDRAS HUMACAO

787-620-2277

HUMACAO, PR 00791